| 205 / | HD | ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS |
| 334 | DF | ELECTROLYTIC SYNTHESIS (PROCESS, COMPOSITION, AND METHOD OF PREPARING COMPOSITION) {21} |
| 615 | DF | .~ Preparing nonmetal element {8} |
| 618 | ![]() | .~.~ Halogen produced {3} |
| 619 | DF | .~.~.~> Fluorine, bromine, or iodine produced |
| 620 | DF | .~.~.~> Chlorine and hydrogen produced {1} |
| 622 | DF | .~.~.~> Utilizing specified electrode other than graphite or inorganic carbon {3} |